In the stratosphere,ultraviolet radiation is absorbed by ........

The Montreal Protocol,which was signed to protect the ozone layer from human activities,was passed in the year ...... .

The reduction in the emission of global ozone-depleting substances was accepted by which of the following protocols?

The $Montreal$ protocol is concerned with:

Recognizing the deleterious effects of ozone depletion,an international treaty was signed at Montreal in $1987$ to control the emission of ozone-depleting substances,which is known as $.........$.

"Good ozone" is found in the .........